Processors
CPU and GPU utilization, load averages, per-core usage, plus high-CPU, high-wake, and high-memory processes.
NATIVE macOS MENU BAR MONITOR
Know whether your Mac
is cool or under pressure.
One quiet native panel for CPU, GPU, memory, disk, network, thermal state, and battery — sampled only when needed.
Download direct editionRequires macOS 14 or later
7 metric groups · 1–5 second refresh · On-deviceColdHotUpdated just now
NormalCPUtotal usage
18%GPUdevice utilization
11%Memoryused
9.8 GBThermalsystem pressure
Normal⚙SettingsEvery 2 sec
WHAT YOU CAN MONITOR
A quiet overview. Details only when you ask.
Top-level cards keep the signal clear. Per-core load, processes, temperatures, and electrical details are opt-in and sampled only while their card is expanded.
System resources
Memory pressure and composition, swap, disk capacity, live throughput, IOPS, and network interface traffic.
Thermal and battery
System thermal pressure, opt-in temperatures, battery health, cycle count, time remaining, voltage, current, and live power.
Efficient sampling
Collapsed cards avoid expensive details, while process rankings and disk capacity use separate throttled schedules.
ON DEMAND
ColdHot samples only what you choose to see.
7 metric groups
CPU, GPU, memory, disk, network, thermal state, and battery
Independent detail toggles
Hidden details stay out of the panel and do not trigger active sampling
Two distribution editions
The direct edition has full sensors; the App Store edition follows sandbox and public API limits
Dock shortcut
The direct edition can toggle zero-delay edge reveal for an auto-hidden Dock
TWO EDITIONS
Choose the edition that fits how you install apps.
Website / GitHub edition
Developer ID signed and Apple notarized, with full temperature sensors, SMC power, process rankings, and the Dock shortcut.
Download from GitHub →Mac App Store edition
Sandboxed and limited to metrics available through public system capabilities, without private sensors or system preference changes.
Preparing for the App StorePRIVACY POLICY
Your performance data
stays on your Mac.
Last updated August 12, 2026
No monitoring data collection
ColdHot has no account, advertising, or analytics SDK. Performance, temperature, battery, network, and process data is never uploaded to the developer or third parties.
Preferences remain local
Metric selection, refresh interval, and interface preferences are stored only in the app's local preferences. Removing app data removes these settings.
Latency checks are opt-in
Network latency is off by default. When enabled and the network card is open, ColdHot connects to 1.1.1.1:443 about every 10 seconds to time the TCP handshake; no monitoring data is sent.
Edition capabilities are explicit
The direct edition can read additional local sensors and control the Dock shortcut. The App Store edition is sandboxed and uses only capabilities allowed for that edition.
SUPPORT
Need help?
Tell me what happened.
Please include your Mac model, macOS version, ColdHot version, the affected metric, and any screenshot you are comfortable sharing.
QUICK HELP
Common questions
Why is a temperature or power value unavailable?
Apple Silicon sensors and keys vary by model. ColdHot filters missing or implausible readings and never substitutes adapter wattage for live power.
Will ColdHot noticeably affect performance?
Sampling is demand-driven and collapsed cards retain summaries only. Choose a 1, 2, or 5 second refresh and disable any metric or detail you do not need.
Can I install both editions?
They use different bundle identifiers but share the same app name. Choose one long-term installation channel to avoid overwriting the app in your Applications folder.